<?xml version="1.0" encoding='utf-8'?>
<!DOCTYPE wml PUBLIC "-//WAPFORUM//DTD WML 1.1//EN" "http://www.wapforum.org/DTD/wml_1.1.xml">
<wml>
<card id="card1" title="Variable valve timing - Page 3 - Wikipedia">
<p>
<a accesskey="1" href="page.php?w=variable_valve_timing&amp;p=2">1.Previous</a><br />
<a accesskey="3" href="page.php?w=variable_valve_timing&amp;p=4">3.Next</a>
</p>
<p>into and out of the <a href="page.php?w=combustion_chamber">combustion chamber</a>. The timing, duration and lift of these valve events has a significant impact on engine performance. Without variable valve timing (<a href="page.php?w=variable_valve_lift">variable valve lift</a>), the valve timing is the same for all engine speeds and conditions, therefore compromises are necessary to achieve the desired result in intake and exhaust efficiency .  This has been described in simulations. Practical results will vary based on available ambient combustion</p><p>
<a accesskey="1" href="page.php?w=variable_valve_timing&amp;p=2">1.Previous</a><br />
<a accesskey="3" href="page.php?w=variable_valve_timing&amp;p=4">3.Next</a>
</p>

<do type="prev" label="Search">
        <go href="search.wml"/>
</do>

</card>
</wml>
